epicritic การใช้

• The fine touch ( epicritic ) is conducted by fibers of the medial lemniscus.
• However, the investigations, bizarre as they may seem, did have a sound scientific basis since Rivers especially was looking at the protopathic and epicritic from an evolutionary perspective.
• "' Epicritic neurons "'detect gentle touch such as caresses; light vibrations; the ability to recognize the shape of an object being held; and two-point discrimination, or the spacing of two points being touched simultaneously.
• From an evolutionary perspective, it soon became clear to Rivers that the epicritic nervous reaction was the superior, as it suppressed and abolished all protopathic sensibility . it is at this point that the experiment takes on an almost farcical aspect to the casual reader.
• Head and Rivers noted that the thrill evoked by aesthetic pleasure is " accompanied by the erection of hairs " and they noted that this reaction was no greater in the area of skin with protopathic sensibility than it was in the area of the more evolved epicritic, making it a purely psychologically based phenomena.
• Head and Rivers had discovered two constituents of cutaneous sensibility : the " protopathic " system, through which pain and degrees of heat and cold beyond normal thresholds can be recognised but not accurately localised, and an " epicritic " system which is concerned with the perception of light touches, degrees of temperature natural to the skin, accurate localisation of stimulus and discrimination of two simultaneous contacts.